chrome/browser/copresence/chrome_whispernet_client_browsertest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/copresence/chrome_whispernet_client.h"
   6
   7 #include <cmath>
   8 #include <cstdlib>
   9 #include <string>
  10
  11 #include "base/bind.h"
  12 #include "base/macros.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/run_loop.h"
  15 #include "base/stl_util.h"
  16 #include "chrome/browser/extensions/api/copresence/copresence_api.h"
  17 #include "chrome/browser/extensions/extension_browsertest.h"
  18 #include "chrome/browser/profiles/profile.h"
  19 #include "chrome/browser/ui/browser.h"
  20 #include "chrome/test/base/in_process_browser_test.h"
  21 #include "components/audio_modem/public/audio_modem_types.h"
  22 #include "components/audio_modem/public/whispernet_client.h"
  23 #include "media/audio/audio_manager.h"
  24 #include "media/audio/audio_manager_base.h"
  25 #include "media/audio/audio_parameters.h"
  26 #include "media/base/audio_bus.h"
  27 #include "media/base/audio_converter.h"
  28
  29 using audio_modem::WhispernetClient;
  30 using audio_modem::AUDIBLE;
  31 using audio_modem::INAUDIBLE;
  32 using audio_modem::TokenParameters;
  33
  34 namespace {
  35
  36 // TODO(ckehoe): Use randomly generated tokens instead.
  37 const char kSixZeros[] = "MDAwMDAw";
  38 const char kEightZeros[] = "MDAwMDAwMDA";
  39 const char kNineZeros[] = "MDAwMDAwMDAw";
  40
  41 const size_t kTokenLengths[2] = {6, 6};
  42
  43 // Copied from src/components/copresence/mediums/audio/audio_recorder.cc
  44 std::string AudioBusToString(scoped_refptr<media::AudioBusRefCounted> source) {
  45   std::string buffer;
  46   buffer.resize(source->frames() * source->channels() * sizeof(float));
  47   float* buffer_view = reinterpret_cast<float*>(string_as_array(&buffer));
  48
  49   const int channels = source->channels();
  50   for (int ch = 0; ch < channels; ++ch) {
  51     for (int si = 0, di = ch; si < source->frames(); ++si, di += channels)
  52       buffer_view[di] = source->channel(ch)[si];
  53   }
  54
  55   return buffer;
  56 }
  57
  58 void GetTokenParamsForLengths(const size_t token_lengths[2],
  59                               TokenParameters* params) {
  60   params[0].length = token_lengths[0];
  61   params[1].length = token_lengths[1];
  62 }
  63
  64 void IgnoreResult(bool success) {}
  65
  66 }  // namespace
  67
  68 class ChromeWhispernetClientTest : public ExtensionBrowserTest,
  69                                    public media::AudioConverter::InputCallback {
  70  protected:
  71   ChromeWhispernetClientTest()
  72       : initialized_(false),
  73         expected_audible_(false),
  74         saved_samples_index_(0) {}
  75
  76   ~ChromeWhispernetClientTest() override {}
  77
  78   void InitializeWhispernet() {
  79     scoped_ptr<WhispernetClient> client(
  80         new ChromeWhispernetClient(browser()->profile()));
  81     client->Initialize(base::Bind(
  82         &ChromeWhispernetClientTest::InitCallback, base::Unretained(this)));
  83
  84     run_loop_.reset(new base::RunLoop());
  85     run_loop_->Run();
  86     EXPECT_TRUE(initialized_);
  87   }
  88
  89   // This needs to be called before any of the decoder tests are run. We can't
  90   // run this code in the constructor or the SetUp methods because the audio
  91   // manager seems to get initialized only *after* ExtensionBrowserTest::SetUp
  92   // has finished executing. Setting up a testing AudioMager causes the actual
  93   // create happening later in the browser initialization to fail. The only way
  94   // around this at the moment seems to be to have this method called from
  95   // every test before they try to decode.
  96   void SetupDecode() {
  97     // We get default parameters here instead of the constructor since
  98     // initializing Whispernet also creates our AudioManager. Initializing from
  99     // the test instead causes issues.
 100     default_params_ = media::AudioManager::Get()->GetInputStreamParameters(
 101         media::AudioManagerBase::kDefaultDeviceId);
 102
 103     coder_params_ = media::AudioParameters(
 104         default_params_.format(), audio_modem::kDefaultChannelLayout,
 105         audio_modem::kDefaultSampleRate, audio_modem::kDefaultBitsPerSample,
 106         default_params_.frames_per_buffer());
 107
 108     converter_.reset(new media::AudioConverter(
 109         coder_params_, default_params_,
 110         default_params_.sample_rate() == coder_params_.sample_rate()));
 111     converter_->AddInput(this);
 112   }
 113
 114   void EncodeTokenAndSaveSamples(WhispernetClient* client,
 115                                  bool audible,
 116                                  const std::string& token,
 117                                  const TokenParameters token_params[2]) {
 118     run_loop_.reset(new base::RunLoop());
 119     client->RegisterSamplesCallback(
 120         base::Bind(&ChromeWhispernetClientTest::SamplesCallback,
 121                    base::Unretained(this)));
 122     expected_token_ = token;
 123     expected_audible_ = audible;
 124
 125     client->EncodeToken(token, audible ? AUDIBLE : INAUDIBLE, token_params);
 126     run_loop_->Run();
 127
 128     EXPECT_GT(saved_samples_->frames(), 0);
 129   }
 130
 131   void DecodeSamplesAndVerifyToken(WhispernetClient* client,
 132                                    bool expect_audible,
 133                                    const std::string& expected_token,
 134                                    const TokenParameters token_params[2]) {
 135     run_loop_.reset(new base::RunLoop());
 136     client->RegisterTokensCallback(base::Bind(
 137         &ChromeWhispernetClientTest::TokensCallback, base::Unretained(this)));
 138     expected_token_ = expected_token;
 139     expected_audible_ = expect_audible;
 140
 141     ASSERT_GT(saved_samples_->frames(), 0);
 142
 143     scoped_refptr<media::AudioBusRefCounted> samples_bus =
 144         ConvertSavedSamplesToSystemParams();
 145     client->DecodeSamples(expect_audible ? AUDIBLE : INAUDIBLE,
 146                           AudioBusToString(samples_bus), token_params);
 147     run_loop_->Run();
 148   }
 149
 150   void InitCallback(bool success) {
 151     EXPECT_TRUE(success);
 152     initialized_ = true;
 153     ASSERT_TRUE(run_loop_);
 154     run_loop_->Quit();
 155   }
 156
 157   void SamplesCallback(
 158       audio_modem::AudioType type,
 159       const std::string& token,
 160       const scoped_refptr<media::AudioBusRefCounted>& samples) {
 161     EXPECT_EQ(expected_token_, token);
 162     EXPECT_EQ(expected_audible_, type == AUDIBLE);
 163     saved_samples_ = samples;
 164     ASSERT_TRUE(run_loop_);
 165     run_loop_->Quit();
 166   }
 167
 168   void TokensCallback(const std::vector<audio_modem::AudioToken>& tokens) {
 169     ASSERT_TRUE(run_loop_);
 170     run_loop_->Quit();
 171
 172     EXPECT_EQ(expected_token_, tokens[0].token);
 173     EXPECT_EQ(expected_audible_, tokens[0].audible);
 174   }
 175
 176  private:
 177   scoped_refptr<media::AudioBusRefCounted> ConvertSavedSamplesToSystemParams() {
 178     int new_size =
 179         saved_samples_->frames() *
 180         std::ceil(static_cast<double>(default_params_.sample_rate()) /
 181                   coder_params_.sample_rate());
 182     new_size =
 183         std::ceil(static_cast<double>(new_size) / converter_->ChunkSize()) *
 184         converter_->ChunkSize();
 185
 186     scoped_refptr<media::AudioBusRefCounted> converted_samples =
 187         media::AudioBusRefCounted::Create(default_params_.channels(), new_size);
 188
 189     // Convert our single channel samples to two channel. Decode samples
 190     // expects 2 channel data.
 191     saved_samples_stereo_ =
 192         media::AudioBusRefCounted::Create(2, saved_samples_->frames());
 193     memcpy(saved_samples_stereo_->channel(0), saved_samples_->channel(0),
 194            sizeof(float) * saved_samples_->frames());
 195     memcpy(saved_samples_stereo_->channel(1), saved_samples_->channel(0),
 196            sizeof(float) * saved_samples_->frames());
 197
 198     saved_samples_index_ = 0;
 199     converter_->Convert(converted_samples.get());
 200
 201     return converted_samples;
 202   }
 203
 204   // AudioConverter::InputCallback overrides:
 205   double ProvideInput(media::AudioBus* dest,
 206                       base::TimeDelta /* buffer_delay */) override {
 207     // Copy any saved samples we have to the output bus.
 208     const int remaining_frames =
 209         saved_samples_->frames() - saved_samples_index_;
 210     const int frames_to_copy = std::min(remaining_frames, dest->frames());
 211     saved_samples_stereo_->CopyPartialFramesTo(saved_samples_index_,
 212                                                frames_to_copy, 0, dest);
 213     saved_samples_index_ += frames_to_copy;
 214
 215     // Pad any remaining space with zeroes.
 216     if (remaining_frames < dest->frames()) {
 217       dest->ZeroFramesPartial(remaining_frames,
 218                               dest->frames() - remaining_frames);
 219     }
 220
 221     // Return the volume level.
 222     return 1.0;
 223   }
 224
 225   scoped_ptr<base::RunLoop> run_loop_;
 226   bool initialized_;
 227
 228   std::string expected_token_;
 229   bool expected_audible_;
 230
 231   scoped_refptr<media::AudioBusRefCounted> saved_samples_;
 232   scoped_refptr<media::AudioBusRefCounted> saved_samples_stereo_;
 233   int saved_samples_index_;
 234
 235   scoped_ptr<media::AudioConverter> converter_;
 236
 237   media::AudioParameters default_params_;
 238   media::AudioParameters coder_params_;
 239
 240   DISALLOW_COPY_AND_ASSIGN(ChromeWhispernetClientTest);
 241 };
 242
 243 // These tests are irrelevant if NACL is disabled. See crbug.com/449198.
 244 #if defined(DISABLE_NACL)
 245 #define MAYBE_Initialize DISABLED_Initialize
 246 #define MAYBE_EncodeAndDecode DISABLED_EncodeAndDecode
 247 #define MAYBE_TokenLengths DISABLED_TokenLengths
 248 #define MAYBE_Crc DISABLED_Crc
 249 #define MAYBE_Parity DISABLED_Parity
 250 #else
 251 #define MAYBE_Initialize Initialize
 252 #define MAYBE_EncodeAndDecode EncodeAndDecode
 253 #define MAYBE_TokenLengths TokenLengths
 254 #define MAYBE_Crc Crc
 255 #define MAYBE_Parity Parity
 256 #endif
 257
 258 // This test trips up ASAN on ChromeOS. See:
 259 // https://code.google.com/p/address-sanitizer/issues/detail?id=189
 260 #if defined(DISABLE_NACL) || defined(OS_CHROMEOS)
 261 #define MAYBE_MultipleClients DISABLED_MultipleClients
 262 #else
 263 #define MAYBE_MultipleClients MultipleClients
 264 #endif
 265
 266 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_Initialize) {
 267   InitializeWhispernet();
 268 }
 269
 270 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_EncodeAndDecode) {
 271   scoped_ptr<WhispernetClient> client(
 272       new ChromeWhispernetClient(browser()->profile()));
 273   client->Initialize(base::Bind(&IgnoreResult));
 274   SetupDecode();
 275
 276   TokenParameters token_params[2];
 277   GetTokenParamsForLengths(kTokenLengths, token_params);
 278
 279   EncodeTokenAndSaveSamples(client.get(), true, kSixZeros, token_params);
 280   DecodeSamplesAndVerifyToken(client.get(), true, kSixZeros, token_params);
 281
 282   EncodeTokenAndSaveSamples(client.get(), false, kSixZeros, token_params);
 283   DecodeSamplesAndVerifyToken(client.get(), false, kSixZeros, token_params);
 284 }
 285
 286 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_TokenLengths) {
 287   scoped_ptr<WhispernetClient> client(
 288       new ChromeWhispernetClient(browser()->profile()));
 289   client->Initialize(base::Bind(&IgnoreResult));
 290   SetupDecode();
 291
 292   const size_t kLongTokenLengths[2] = {8, 9};
 293   TokenParameters token_params[2];
 294   GetTokenParamsForLengths(kLongTokenLengths, token_params);
 295
 296   EncodeTokenAndSaveSamples(client.get(), true, kEightZeros, token_params);
 297   DecodeSamplesAndVerifyToken(client.get(), true, kEightZeros, token_params);
 298
 299   EncodeTokenAndSaveSamples(client.get(), false, kNineZeros, token_params);
 300   DecodeSamplesAndVerifyToken(client.get(), false, kNineZeros, token_params);
 301 }
 302
 303 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_Crc) {
 304   scoped_ptr<WhispernetClient> client(
 305       new ChromeWhispernetClient(browser()->profile()));
 306   client->Initialize(base::Bind(&IgnoreResult));
 307   SetupDecode();
 308
 309   TokenParameters token_params[2];
 310   GetTokenParamsForLengths(kTokenLengths, token_params);
 311   token_params[0].crc = true;
 312   token_params[1].crc = true;
 313
 314   EncodeTokenAndSaveSamples(client.get(), true, kSixZeros, token_params);
 315   DecodeSamplesAndVerifyToken(client.get(), true, kSixZeros, token_params);
 316
 317   EncodeTokenAndSaveSamples(client.get(), false, kSixZeros, token_params);
 318   DecodeSamplesAndVerifyToken(client.get(), false, kSixZeros, token_params);
 319 }
 320
 321 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_Parity) {
 322   scoped_ptr<WhispernetClient> client(
 323       new ChromeWhispernetClient(browser()->profile()));
 324   client->Initialize(base::Bind(&IgnoreResult));
 325   SetupDecode();
 326
 327   TokenParameters token_params[2];
 328   GetTokenParamsForLengths(kTokenLengths, token_params);
 329   token_params[0].parity = false;
 330   token_params[1].parity = false;
 331
 332   EncodeTokenAndSaveSamples(client.get(), true, kSixZeros, token_params);
 333   DecodeSamplesAndVerifyToken(client.get(), true, kSixZeros, token_params);
 334
 335   EncodeTokenAndSaveSamples(client.get(), false, kSixZeros, token_params);
 336   DecodeSamplesAndVerifyToken(client.get(), false, kSixZeros, token_params);
 337 }
 338
 339 IN_PROC_BROWSER_TEST_F(ChromeWhispernetClientTest, MAYBE_MultipleClients) {
 340   scoped_ptr<WhispernetClient> client_1(
 341       new ChromeWhispernetClient(browser()->profile()));
 342   scoped_ptr<WhispernetClient> client_2(
 343       new ChromeWhispernetClient(browser()->profile()));
 344   scoped_ptr<WhispernetClient> client_3(
 345       new ChromeWhispernetClient(browser()->profile()));
 346   SetupDecode();
 347
 348   TokenParameters token_params[2];
 349   GetTokenParamsForLengths(kTokenLengths, token_params);
 350
 351   // Test concurrent initialization.
 352   client_1->Initialize(base::Bind(&IgnoreResult));
 353   client_2->Initialize(base::Bind(&IgnoreResult));
 354
 355   EncodeTokenAndSaveSamples(client_1.get(), true, kSixZeros, token_params);
 356   DecodeSamplesAndVerifyToken(client_1.get(), true, kSixZeros, token_params);
 357
 358   EncodeTokenAndSaveSamples(client_2.get(), false, kSixZeros, token_params);
 359   DecodeSamplesAndVerifyToken(client_2.get(), false, kSixZeros, token_params);
 360
 361   // Test sequential initialization.
 362   client_3->Initialize(base::Bind(&IgnoreResult));
 363
 364   EncodeTokenAndSaveSamples(client_3.get(), true, kSixZeros, token_params);
 365   DecodeSamplesAndVerifyToken(client_3.get(), true, kSixZeros, token_params);
 366
 367   const size_t kLongTokenLengths[2] = {8, 9};
 368   GetTokenParamsForLengths(kLongTokenLengths, token_params);
 369
 370   EncodeTokenAndSaveSamples(client_2.get(), true, kEightZeros, token_params);
 371   DecodeSamplesAndVerifyToken(client_2.get(), true, kEightZeros, token_params);
 372 }